All Classified forums require a Site Supporter subscription. It is only $25 per year and you can buy and sell whatever you like on the forum. To become a Site Supporter, go to Your Profile and select "Paid Subscriptions."
The bed must have been replaced at some time with the newer style as evidenced by the gas filler door on the passenger side.
I was thinking I might do that (it runs), or I might put it in my '79 C30. The only reason I would consider putting it in my C30 is for better fuel economy (it has a 350 in it). The C30 has a 4L80E that I shift electrically with light switches (no computer) :-)I'll have to take some pictures of that truck and put them here too. It also has a 1995 LT1 in it with the fuel injection removed running a carb and HEI.DanLT1 With Carb (Look at the water pump - it is not electric the red wire is an electric temp sensor):